I think the new one will be the size of the required hole so you can verify if the probe will fit.

Wagner has received some complaints that the new sensor is difficult to install, but I bet Jason slips them in easily in his laboratory / bat-cave....

He probably figured out some installers were using a drill bit handed down by their great-great grandfather and either the holes are undersized or they are so wobbly that they aren't round enough to receive the sensor.